HarmonyOS_计算器样式UI

@Entry
@Component
struct Index {
   
  @Styles common(){
   
    .backgroundColor("#ccc")
    .borderRadius(6)
  }

  @State arrs: Array<string> = [
    "CE", "C", "/", "x",
    "7", "8", "9", "-",
    "4", "5", "6", "+"